论文部分内容阅读
三、平面型三相感应式电磁泵的纵向端部效应 纵向端部效应是平面型和圆柱型三相感应式电磁泵的特有问题(直线感应电动机也有这一问题),它本质上是指由于磁场开路所引起的一系列问题,这些问题是: 1.由于磁场开路,三相绕组处于不对称的地位。在这种情况下,即使各相绕组的匝数和形状相同,它们的自感、互感也都不相等,由此引起在对称电压下三相电流的不对称问题(相位和数值都不对称)和推力的降低问题。
Longitudinal end effect of planar three-phase induction electromagnetic pump Longitudinal end effect is the unique problem of planar and cylindrical three-phase induction electromagnetic pump (this issue is also caused by linear induction motor), which essentially means that due to Magnetic field caused by a series of open problems, these problems are: 1. Due to open magnetic field, three-phase winding in an asymmetrical position. In this case, the self-inductance and mutual inductance of the windings of each phase are not equal even if the number of turns and the shape of the windings are the same, thereby causing the problem of asymmetry of the three-phase currents under the symmetrical voltages (the phases and the values are not symmetrical) And thrust reduction problem.